Aptitude - Simple Interest - Discussion
Discussion Forum : Simple Interest - General Questions (Q.No. 13)
13.
A certain amount earns simple interest of Rs. 1750 after 7 years. Had the interest been 2% more, how much more interest would it have earned?
Answer: Option
Explanation:
We need to know the S.I., principal and time to find the rate.
Since the principal is not given, so data is inadequate.
Discussion:
97 comments Page 5 of 10.
Amu said:
8 years ago
Actually, we have to find just amount of how much earned not a rate of interest so 35 answer is correct.
Tarun singh said:
8 years ago
1750 = pr7/100.
Value of pr/100 = 250 from above.
Now r is 2% more.
S.I = p(1.02r)7/100.
S.I = 7.14pr/100.
Substitute the value of pr/100 in above,
S.I = 7.14*250 = 1785.
So difference = 1785-1750 = 35.
Value of pr/100 = 250 from above.
Now r is 2% more.
S.I = p(1.02r)7/100.
S.I = 7.14pr/100.
Substitute the value of pr/100 in above,
S.I = 7.14*250 = 1785.
So difference = 1785-1750 = 35.
Tarun singh said:
8 years ago
35 is correct ans
Megha said:
8 years ago
Why don't we assume 100 as a principal?
Can anyone answer this?
Can anyone answer this?
Saumya said:
8 years ago
35 is the correct answer.
Swati said:
8 years ago
Correct answer is 35.
Anshul Agrawal said:
8 years ago
Correct answer is 35 as interest for one year will be 250 then increase with 2% lead to 255.
Then for 7 years, it will be 255*7=1785.
So, difference between interest will be 1785-1750=35.
Then for 7 years, it will be 255*7=1785.
So, difference between interest will be 1785-1750=35.
Bhadresh savani said:
8 years ago
B is correct.
2% for 7 years will be 14%.
14% of 1750 is 245.
2% for 7 years will be 14%.
14% of 1750 is 245.
Akhil Subramanian said:
8 years ago
1750 divided by 7 give Interest for one year ie, Rs 250.
Here, 2% of 250 is 5.
So if the interest is increased by 2% then the Interest for one year will 255.
So for 7 years 1785.
Thus the difference will be Rs 35.
Here, 2% of 250 is 5.
So if the interest is increased by 2% then the Interest for one year will 255.
So for 7 years 1785.
Thus the difference will be Rs 35.
(1)
Manikanta said:
8 years ago
You're right @Depresser.
In the question earlier interest was let it be R%, later part of the question if interest is increased by 2% that means " R+0.02 " not [ R+R * 0.02].
In the question earlier interest was let it be R%, later part of the question if interest is increased by 2% that means " R+0.02 " not [ R+R * 0.02].
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